Allow decompress option for non-deflate compressed entries

thejoshwolfe · Apr 24, 2018 · 03c0996 · 03c0996
1 parent e0c5a94
commit 03c0996
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/index.js b/index.js
@@ -443,7 +443,7 @@ ZipFile.prototype.openReadStream = function(entry, options, callback) {
       }
     }
     if (options.decompress != null) {
-      if (!entry.isCompressed()) {
+      if (entry.compressionMethod === 0) {
         throw new Error("options.decompress can only be specified for compressed entries");
       }
       if (!(options.decompress === false || options.decompress === true)) {
@@ -511,8 +511,10 @@ ZipFile.prototype.openReadStream = function(entry, options, callback) {
       } else if (entry.compressionMethod === 8) {
         // 8 - The file is Deflated
         decompress = options.decompress != null ? options.decompress : true;
-      } else {
+      } else if (options.decompress == null || options.decompress) {
         return callback(new Error("unsupported compression method: " + entry.compressionMethod));
+      } else {
+        decompress = false;
       }
       var fileDataStart = localFileHeaderEnd;
       var fileDataEnd = fileDataStart + entry.compressedSize;